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  1. Cannabis (drug) - Wikipedia

    Cannabis (/ ˈkænəbɪs /), 2 commonly known as marijuana (/ ˌmærəˈwɑːnə /), 3 weed, pot, and ganja, among other names, is a non-chemically uniform psychoactive drug from the Cannabis …

  2. Marijuana (Cannabis, Weed): What It Is, Side Effects & Risks

    Nov 5, 2023 · What is marijuana? Marijuana is a substance that has mind-altering effects. Other names for marijuana include weed, pot and dope. Although people often use the terms …

  3. Marijuana: Effects on the Body - WebMD

    Dec 23, 2024 · Marijuana — also called weed, grass, or pot, among other names — is a mind-altering substance that comes from the cannabis plant. It's one of the most used drugs in the …

  4. Marijuana | History, Effects, THC, & Legality | Britannica

    4 days ago · Marijuana, drug composed of the leaves and flowers of plants in the genus Cannabis. Marijuana is known by several other names, including pot, grass, and weed. It can …

  5. Marijuana: Effects, Medical Uses and Legalization - Drugs.com

    Marijuana is used as a psychoactive, mind altering recreational drug and for certain medical ailments. The active agent that leads to the "high" is THC (delta-9-tetrahydrocannabinol). …

  6. Marijuana Side Effects: Physical, Mental, and Long-Term Effects

    May 5, 2025 · Marijuana is a botanically-derived drug composed of the dried leaves, stems, seeds, and flowers of the Cannabis sativa or Cannabis indica plant. 2 Colloquially referred to …

  7. Cannabis (Marijuana) | National Institute on Drug Abuse (NIDA)

    Sep 24, 2024 · Learn more about the regulation of products containing cannabis or cannabis-derived compounds from the FDA. Find information and statistics on drug-impaired driving …

  8. Marijuana: Risks and Effects - Poison Control

    Marijuana is the most common illicit drug in the US. A few states have decriminalized small amounts of the drug. Some permit medical uses. Marijuana is usually smoked. Effects include …

  9. Marijuana is a mind-altering (psychoactive) drug, produced by the Cannabis sativa plant. Marijuana has over 480 constituents. THC (delta- 9-tetrahydrocannabinol) is believed to be the …

  10. Basic Facts About Drugs: Marijuana - American Council for Drug ...

    What is Marijuana? Call it pot, grass, weed, or any one of nearly 200 other names, marijuana is, by far, the world’s most commonly used illicit drug—and far more dangerous than most users …